B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/14 (2006.01) B01D 53/18 (2006.01) F23C 9/00 (2006.01) F23J 15/00 (2006.01)
Patent
CA 2584855
The invention is related to a system for removal of moisture and contaminants from recirculated flue gas which is used for combustion in fossil fuel power plants The system includes a spray tower having an inlet at one end of the housing and an outlet at an opposite end of the housing for channeling the flue gas into and out of the housing. Sprayers are located in the housing for spraying the flue gas with a liquid reagent to remove contaminants, including SO2, from the flue gas. A heat exchanger is integrally connected to the housing. The heat exchanger cools the liquid reagent before the reagent is sprayed onto the flue gas stream. The sprayers quench the flue gas stream with the cooled liquid reagent. The cooling of the liquid reagent to a temperature below the flue gas water vapor dew point improves the condensation of the water vapor in the flue gas during the spraying process. The flue gas exits the system with a lower moisture content and is redirected to burner for combustion. As a result, the efficiency the combustion process will improve with less moisture in the flue gas.
Devault Douglas J.
Downs William
Farzan Hamid
Mcdonald Dennis K.
Babcock & Wilcox Company The
Ridout & Maybee Llp
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